.toplevel {
  margin: auto;
  margin-top: 100px;
  width: 534px;
  height: 580px;
  overflow: hidden;
}

/* welcome */

.welcome {
  text-align: center;
  font-family: Arial;
  background: radial-gradient(#FFCDD6, #554874);
}

.welcome .welcome-text {
  margin-top: 100px;
  margin-bottom: 70px;
  font-size: 52px;
  font-weight: 900;
}

.welcome .welcome-text .tetris {
  color: #A4CD57;
  text-shadow: 0px 0px 10px #388E0F;
}

.welcome .welcome-text .v2 {
  font-size: 72px;
  color: #B86486;
  text-shadow: 0px 0px 10px #75225A;
}

.welcome .welcome-text .plain {
  font-size: 42px;
  color: #92D6DF;
  text-shadow: 0px 0px 10px #45B9C6;
}

.welcome .welcome-sub {
  font-weight: bold;
  color: #DDDDDD;
  text-shadow: 0px 0px 5px rgba(0, 0, 0, 0.7);
}

/* main */

.main-stage {
  position: relative;
  background: radial-gradient(#FFCDD6, #554874);
}

.main-stage .ground {
  position: absolute;
  width: 320px;
  height: 480px;
  top: 50px;
  left: 50px;
  box-shadow: inset 3px 5px 20px rgba(0, 0, 0, 0.7);
}

.main-stage .preview {
  position: absolute;
  width: 64px;
  height: 64px;
  top: 50px;
  left: 420px;
  box-shadow: inset 2px 3px 10px rgba(0, 0, 0, 0.7);
}

.main-stage .score {
  position: absolute;
  width: 64px;
  height: 50px;
  top: 164px;
  left: 420px;
  box-shadow: inset 2px 3px 10px rgba(0, 0, 0, 0.7);
}

.main-stage > div {
  background-color: rgb(200,200, 200);
}

.game-over {
  display: none;
}
